Accession Number : AD0700130

Title :   TRAFFIC TESTS ON PORTAGE LAKE ICE.

Descriptive Note : Technical rept.,

Corporate Author : COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H

Personal Author(s) : Stevens,H. W. ; Tizzard,W. J.

Report Date : DEC 1969

Pagination or Media Count : 70

Abstract : A limited series of traffic tests were conducted on floating lake ice using a dual-wheel loaded to gross weights of 20,250; 28,250 and 36,250 lbs. Deflections were measured under static and moving loads on a continuous ice sheet and adjacent to a free edge. Representative samples of the ice were tested in unconfined compression, direct shear, flexure, and under a dynamic load (steady-state vibration). Crystal size and orientation were measured. An analysis of test results is presented using linear elastic theory and a method is proposed for estimating time variations of deflection. (Author)

Descriptors :   (*LAKES, ICE), (*ICE, *TRAFFICABILITY), STRUCTURAL PROPERTIES, SAMPLING, COLD WEATHER TESTS, LOADS(FORCES), FLEXURAL STRENGTH, REACTION KINETICS

Subject Categories : Snow, Ice and Permafrost

Distribution Statement : APPROVED FOR PUBLIC RELEASE